Infineon Technologies S70KL1283GABHV020

Overview

S70KL1283GABHV020 from Infineon is a 128 Mb self-refresh DRAM (PSRAM) with octal xSPI interface, 1.8 V/3.0 V dual-voltage support, 200 MHz max clock rate, and 400 MBps data throughput. It operates in industrial-plus temperature range (–40°C to +105°C), uses stacked-die architecture (two 64 Mb dies), and delivers DDR-aligned read/write performance for embedded memory expansion in microcontroller-based systems.

For engineers reviewing the S70KL1283GABHV020 datasheet, S70KL1283GABHV020 pinout, S70KL1283GABHV020 application, or S70KL1283GABHV020 equivalent, key selection criteria include xSPI octal bus timing compliance, RWDS strobe behavior under DCARS mode, hybrid sleep power management, burst length configurability (16–128 bytes), and FBGA-24 package compatibility with high-density PCB layouts.

Technical Context

This PSRAM implements a true self-refresh DRAM core with on-die refresh control logic, eliminating host-side refresh overhead. Its xSPI octal interface supports both single-ended (11-signal) and optional differential clock (12-signal) configurations, with RWDS serving as bidirectional strobe-output during reads (including DCARS phase-shifted variant), input during writes as mask signal.

The device features configurable burst modes (linear/wrapped), programmable output drive strength, and hierarchical power states: Hybrid Sleep (per-die entry), Deep Power Down (330 µA at 2.0 V), and interface standby. Memory space is organized across two 64 Mb stacked dies, with linear burst crossing die boundaries unsupported.

Key Specifications

Pinout & Package

24-ball FBGA package (5 mm × 5 mm, 0.8 mm pitch) with I/O ball mapping defined per Infineon datasheet Rev. *C. Pin functions align with xSPI octal interface requirements and support both single-ended and differential clock operation.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar PSRAM applications.

Compared with S27KL0641DPBHV020 and W958D8MBJX1I, the S70KL1283GABHV020 uniquely combines full 128 Mb density, octal xSPI bandwidth, per-die power control, and DCARS timing - enabling higher integration, lower EMI sensitivity, and finer-grained power management in thermally demanding embedded designs.

Availability

S70KL1283GABHV020 is available at Aetrix Electronics and suitable for automotive ADAS displays, industrial HMIs, edge AI inference accelerators, and smart camera video preprocessing requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for S70KL1283GABHV020 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Infineon Technologies is a German semiconductor manufacturer specializing in power management, sensor, and memory solutions for automotive, industrial, and IoT applications.

The HYPERRAM™ product line delivers high-bandwidth, low-power PSRAMs optimized for replacing parallel NOR/NAND and legacy SRAM in microcontroller- and SoC-based systems needing scalable external memory with minimal host overhead.

FAQ

What is the function of the RWDS pin in S70KL1283GABHV020?

RWDS is a bidirectional strobe signal: it outputs during read transactions as a data-valid indicator (with optional DCARS phase shift), and inputs during write transactions as a byte-mask signal. Its timing is tightly coupled to CK/CK# and critical for DDR-aligned data capture-especially in noisy automotive or industrial environments where precise strobe placement improves reliability.

Does S70KL1283GABHV020 require external refresh commands from the host?

No. The device contains on-die self-refresh circuitry that autonomously manages DRAM array refresh during idle periods. The host interacts exclusively via xSPI commands-no refresh scheduling, counters, or timing constraints are imposed on the controller, making it functionally equivalent to static RAM in software abstraction.

Can both 64 Mb dies enter Deep Power Down simultaneously?

No. Due to stacked-die architecture, only one die at a time can enter Deep Power Down or Hybrid Sleep mode. This limitation is documented in Note 1 of the datasheet and requires firmware coordination when managing power states across the full 128 Mb address space.

What is the significance of "Hybrid Sleep" mode in this PSRAM?

Hybrid Sleep is a low-power state where the DRAM array remains powered and retains data, but the I/O interface and clock circuitry are gated. It achieves faster wake-up than Deep Power Down (sub-microsecond vs. milliseconds) while consuming significantly less current than active standby-ideal for bursty workloads like GUI rendering or sensor data buffering in battery-sensitive edge devices.